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Membrane heat and mass exchanger and methods of manufacture

a technology of membrane heat and mass exchanger, which is applied in the direction of indirect heat exchangers, lighting and heating apparatus, heating types, etc., can solve the problems of high manufacturing cost, hampered market penetration of erv devices, and large amount of thermal energy wasted

Inactive Publication Date: 2019-05-30
THE STATE OF OREGON ACTING BY & THROUGH THE OREGON STATE BOARD OF HIGHER EDUCATION ON BEHALF OF OREGON STATE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent was made with government support and has certain rights. The technical effect of the patent is that it provides information that helps improve the performance of a specific invention.

Problems solved by technology

A large amount of thermal energy is wasted when conditioned air in buildings is exhausted to the environment in order to meet ventilation requirements.
Without any way to recover at least some of this energy, it is lost when the conditioned air is exhausted to the outside.
Market penetration of ERV devices has been hampered by high manufacturing costs and relatively low volumetric efficiency.

Method used

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  • Membrane heat and mass exchanger and methods of manufacture
  • Membrane heat and mass exchanger and methods of manufacture
  • Membrane heat and mass exchanger and methods of manufacture

Examples

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Embodiment Construction

[0015]Described herein is a parallel membrane gas-to-gas heat and mass exchanger (HMX) device core for energy recovery ventilation (ERV) systems comprising multiple membranes having integrated support structures. The HMX core of an ERV system generally comprises a stack of parallel hydrophilic membranes, each separated by an airflow channel. The stack of airflow channels in the HMX may be arranged in a counter-flow or crossflow configuration.

[0016]Embodiments of the disclosed HMX membrane core comprises multiple HMX membranes having integrated support structures. The HMX membrane laminates exhibit low heat and mass transport resistance, in part due to their small thickness (e.g., a thickness less than 30 microns), and in part due to the hydrophilic membrane material exhibiting high selectivity to water transport. Support structures in the form of strip fins and / or pillars are incorporated onto the membrane material to enhance the rigidity of the membrane material that by itself is t...

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Abstract

A heat and mass exchange (HMX) device comprising a plurality of membranes arranged in a stack. Adjacent membranes are separated from one another by an airflow channel Each membrane of the stack comprises an array of integrated support structures that extend into the airflow channel and to the second membrane. The support structures comprise an adhesive material that is bonded to each membrane. The support structures divide the airflow channels into subchannels.

Description

CROSS-REFERENCE TO PRIORITY DOCUMENTS[0001]This U.S. Patent Application claims the benefit of priority under 35 U.S.C. 119(e) of U.S. Provisional Application No. 62 / 591,400, filed on Nov. 28, 2017.GOVERNMENT SUPPORT[0002]This invention was made with government support under Award No. DE-SC0006224, awarded by the United States Department of Energy. The government has certain rights in the invention.BACKGROUND[0003]A large amount of thermal energy is wasted when conditioned air in buildings is exhausted to the environment in order to meet ventilation requirements. Building ventilation systems may expend a good deal of energy to heat, cool, humidify or dehumidify a volume of fresh air taken in from the outside. Without any way to recover at least some of this energy, it is lost when the conditioned air is exhausted to the outside. Several technologies have been developed to recover some of the energy before the conditioned air is exhausted to the outside. Among these are Energy Recover...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F24F3/147
CPCF24F3/147F28F21/066F28D9/0062F28D21/0015F28F2275/025F28F2245/02
Inventor ARMATIS, PAUL D.PAUL, BRIAN K.WANG, HAILEIFRONK, BRIAN M.KAWULA, STEVENSONG, CHUANKAI
Owner THE STATE OF OREGON ACTING BY & THROUGH THE OREGON STATE BOARD OF HIGHER EDUCATION ON BEHALF OF OREGON STATE UNIV